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Motion blur acts as distortion?


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#1 Patrick Casey

Patrick Casey
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Posted 31 October 2006 - 09:01 AM

Hey there,

I've been doing quite a bit of roto work lately and I've noticed a strange optical artefact that I was hoping someone could explain the nature of. Now this material originated on film so I don't think that it has anything to do with video compression or the suchlike.

Sometimes when an actor quickly moves over an object that has well-defined lines (a window in this case) it seems that in the trail of the motion blur from the actor the lines _bend_ in the direction that the motion is going towards. I can't post any stills since the movie isn't released yet but if someone's seen this sort of thing before and know what it is then I'd be happy. It's not important for my work right now, but it'd be fun to know.

Cheers,
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The Slider

Wooden Camera

Visual Products

Rig Wheels Passport

Willys Widgets

Tai Audio

Paralinx LLC

Broadcast Solutions Inc

CineLab

Glidecam

FJS International, LLC

Abel Cine

New Pro Video - New and Used Equipment

rebotnix Technologies

Media Blackout - Custom Cables and AKS

Aerial Filmworks

CineTape

Metropolis Post

Gamma Ray Digital Inc

Ritter Battery

Technodolly